🚀 go-pugleaf

In message-Id: <5019gq$t29@falcon.le.ac.uk>
"Dr E. Buxbaum" <EB15@le.ac.uk> writes:

> Is there any possibility of using arbitrary transforms for the axis of a
> plot (like log axis, but with different functions). They are used
> frequently in enzyme kinetics and thermodynamics, like Linweaver-Burk
> plot (1/x vs 1/y), Arrhenius plot (1/x vs log(y)) and so on. Although the
> linearization is no longer needed to fit modells to the data, they do
> make it easy to see, whether or not the data actually follow the model
> (departures from a straight line are easier to see than departures from a
> curve).

gnuplot 3.6 has an extended 'using' syntax that allows just such data
manipulation -- you can do things like

  plot 'data' using (f($1)):(g($2,$3))

where f(x) will be used instead of x and g(y,z) will be used instead of y.
The "$n" construct means "the datum in column n".

Dick Crawford, aka rccrawford@lanl.gov